JPS5768202A - Manufacture of rough shaped steel billet for asymmetric - Google Patents

Manufacture of rough shaped steel billet for asymmetric

Info

Publication number
JPS5768202A
JPS5768202A JP14317180A JP14317180A JPS5768202A JP S5768202 A JPS5768202 A JP S5768202A JP 14317180 A JP14317180 A JP 14317180A JP 14317180 A JP14317180 A JP 14317180A JP S5768202 A JPS5768202 A JP S5768202A
Authority
JP
Japan
Prior art keywords
calibers
dissimilarly
intermediate material
breadth
rolls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14317180A
Other languages
Japanese (ja)
Inventor
Hisashi Nagahiro
Teruyuki Nakanishi
Yoshinori Miura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP14317180A priority Critical patent/JPS5768202A/en
Publication of JPS5768202A publication Critical patent/JPS5768202A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To improve the yield and efficiency of the rolling process, by preparing an intermediate material having dissimilarly shaped flanges at lateral both ends of a slab by using dissimilarly sized upper and lower box calibers, by turning this intermediate material, and by subjecting it to a rolling process through a rolling roll having dissimilarly shaped left and right shape forming calibers. CONSTITUTION:The said rolling rolls comprise upper and lower rolls 6, 7 whose outer surfaces are provided with dissimilarly sized upper and lower calibers consisting of centering calibers 8, 9, breadth widening calibers 10, 11 flange's outer surface and tip reforming calibers 12, 13 and forming calibers 14, 15. When a flat slab is rolled in the direction of breadth by these rolls, an intermediate material having dissimilarly shaped flanges at lateral both ends is formed by the centering calibers 8, 9, breadth widening calibers 10, 11, and flange's outer surface and tip reforming calibers 12, 13. This intermediate material is turned, and is rolled by forming calibers 14, 15 into a rough shaped steel billet for use of manufacturing a prescribed asymmetric steel shape.
JP14317180A 1980-10-14 1980-10-14 Manufacture of rough shaped steel billet for asymmetric Pending JPS5768202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14317180A JPS5768202A (en) 1980-10-14 1980-10-14 Manufacture of rough shaped steel billet for asymmetric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14317180A JPS5768202A (en) 1980-10-14 1980-10-14 Manufacture of rough shaped steel billet for asymmetric

Publications (1)

Publication Number Publication Date
JPS5768202A true JPS5768202A (en) 1982-04-26

Family

ID=15332560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14317180A Pending JPS5768202A (en) 1980-10-14 1980-10-14 Manufacture of rough shaped steel billet for asymmetric

Country Status (1)

Country Link
JP (1) JPS5768202A (en)

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